June 5th, 2021
P. Cortez, A. Cerdeira, F. Almeida, T. Matos and J. Reis. Modeling wine preferences by data mining from physicochemical properties. In Decision Support Systems, Elsevier, 47(4):547-553, 2009.
Image: http://www.hallwaymathlete.com/2016/05/introduction-to-machine-learning-with.html
Model performance was measured as mean absolute error using 5-fold cross-validation.
| Model | Mean Absolute Error |
|---|---|
| Random Forest | 0.44 |
| Linear Regression | 0.57 |
| Decision Tree | 0.60 |
\[MAE(y,f(X)) = abs(y - f(X))\]